81 x 9 = 801. What must you do to make the this equation true?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Find the next number in the sequence

1, 2, 6, 21, 88, __?

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

What time is it when an elephant sits on a fence?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

How many triangles can you find in this given picture?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?